<?php

/**
 * LoginForm class.
 * LoginForm is the data structure for keeping
 * user login form data. It is used by the 'login' action of 'SiteController'.
 */
class LoginForm extends CFormModel
{
	public $email;
	public $password;
	public $rememberMe;

	private $_identity;

	/**
	 * Declares the validation rules.
	 * The rules state that username and password are required,
	 * and password needs to be authenticated.
	 */
	public function rules()
	{
		return array(
			// username and password are required
			array('email, password', 'required'),
			array('email', 'email'),
			// rememberMe needs to be a boolean
			array('rememberMe', 'boolean'),
			// password needs to be authenticated
			array('password', 'authenticate'),
		);
	}

	/**
	 * Declares attribute labels.
	 */
	public function attributeLabels()
	{
		return array(
			'rememberMe'=>'Remember me next time',
		);
	}

	/**
	 * Authenticates the password.
	 * This is the 'authenticate' validator as declared in rules().
	 */
	public function authenticate($attribute,$params)
	{
		if(!$this->hasErrors())
			return true;
		else
			return false;
	}

	/**
	 * Logs in the user using the given username and password in the model.
	 * @return boolean whether login is successful
	 */
	public function login()
	{
		$user = @User::model()->find('LOWER(email)=?',array($this->email))->attributes;
		if(!isset($user))
			return 'Không có tài khoản này';
		elseif(!($this->verifyPassword($user['password'])))
			return 'Mật khẩu sai';
		else
			$duration=$this->rememberMe ? 3600*24*30 : 0; // 30 days
			$this->_identity=new CUserIdentity($user['id'],$this->password);
			Yii::app()->user->login($this->_identity,$duration);
			Yii::app()->user->setReturnUrl('/flyhigh/page/feed');
			Yii::app()->user->setName($user['name']);
			return 'Đăng nhập thành công';
	}

	private function verifyPassword($hash)
	{
		return CPasswordHelper::verifyPassword($this->password, $hash);
	}
}
